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Finding the Fourth Proportional to 626,463.56, 864,668.04 and 371,961.56

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Solution

The fourth proportional to 626,463.56, 864,668.04 and 371,961.56 is: 513,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,463.56 : 864,668.04 = 371,961.56 : x
  2. Step 2: Convert to fraction form
    626,463.56/864,668.04 = 371,961.56/x
  3. Step 3: Cross multiply
    626,463.56x = 864,668.04 × 371,961.56
  4. Step 4: Simplify right side
    626,463.56x = 321,623,273,040.54
  5. Step 5: Solve for x
    x = 321,623,273,040.54/626,463.56
  6. Step 6: Final answer
    x = 513,395.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.